FFmpeg
vf_dnn_processing.c
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1 /*
2  * Copyright (c) 2019 Guo Yejun
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * implementing a generic image processing filter using deep learning networks.
24  */
25 
26 #include "libavformat/avio.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavutil/avassert.h"
30 #include "libavutil/imgutils.h"
31 #include "filters.h"
32 #include "dnn_filter_common.h"
33 #include "formats.h"
34 #include "internal.h"
35 #include "libswscale/swscale.h"
36 #include "libavutil/time.h"
37 
38 typedef struct DnnProcessingContext {
39  const AVClass *class;
44 
45 #define OFFSET(x) offsetof(DnnProcessingContext, dnnctx.x)
46 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
47 static const AVOption dnn_processing_options[] = {
48  { "dnn_backend", "DNN backend", OFFSET(backend_type), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "backend" },
49  { "native", "native backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, FLAGS, "backend" },
50 #if (CONFIG_LIBTENSORFLOW == 1)
51  { "tensorflow", "tensorflow backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, 0, 0, FLAGS, "backend" },
52 #endif
53 #if (CONFIG_LIBOPENVINO == 1)
54  { "openvino", "openvino backend flag", 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, 0, 0, FLAGS, "backend" },
55 #endif
57  { NULL }
58 };
59 
60 AVFILTER_DEFINE_CLASS(dnn_processing);
61 
63 {
65  return ff_dnn_init(&ctx->dnnctx, DFT_PROCESS_FRAME, context);
66 }
67 
68 static const enum AVPixelFormat pix_fmts[] = {
75 };
76 
77 #define LOG_FORMAT_CHANNEL_MISMATCH() \
78  av_log(ctx, AV_LOG_ERROR, \
79  "the frame's format %s does not match " \
80  "the model input channel %d\n", \
81  av_get_pix_fmt_name(fmt), \
82  model_input->channels);
83 
84 static int check_modelinput_inlink(const DNNData *model_input, const AVFilterLink *inlink)
85 {
86  AVFilterContext *ctx = inlink->dst;
87  enum AVPixelFormat fmt = inlink->format;
88 
89  // the design is to add explicit scale filter before this filter
90  if (model_input->height != -1 && model_input->height != inlink->h) {
91  av_log(ctx, AV_LOG_ERROR, "the model requires frame height %d but got %d\n",
92  model_input->height, inlink->h);
93  return AVERROR(EIO);
94  }
95  if (model_input->width != -1 && model_input->width != inlink->w) {
96  av_log(ctx, AV_LOG_ERROR, "the model requires frame width %d but got %d\n",
97  model_input->width, inlink->w);
98  return AVERROR(EIO);
99  }
100  if (model_input->dt != DNN_FLOAT) {
101  avpriv_report_missing_feature(ctx, "data type rather than DNN_FLOAT");
102  return AVERROR(EIO);
103  }
104 
105  switch (fmt) {
106  case AV_PIX_FMT_RGB24:
107  case AV_PIX_FMT_BGR24:
108  if (model_input->channels != 3) {
110  return AVERROR(EIO);
111  }
112  return 0;
113  case AV_PIX_FMT_GRAY8:
114  case AV_PIX_FMT_GRAYF32:
115  case AV_PIX_FMT_YUV420P:
116  case AV_PIX_FMT_YUV422P:
117  case AV_PIX_FMT_YUV444P:
118  case AV_PIX_FMT_YUV410P:
119  case AV_PIX_FMT_YUV411P:
120  case AV_PIX_FMT_NV12:
121  if (model_input->channels != 1) {
123  return AVERROR(EIO);
124  }
125  return 0;
126  default:
128  return AVERROR(EIO);
129  }
130 
131  return 0;
132 }
133 
135 {
138  int result;
139  DNNData model_input;
140  int check;
141 
142  result = ff_dnn_get_input(&ctx->dnnctx, &model_input);
143  if (result != 0) {
144  av_log(ctx, AV_LOG_ERROR, "could not get input from the model\n");
145  return result;
146  }
147 
148  check = check_modelinput_inlink(&model_input, inlink);
149  if (check != 0) {
150  return check;
151  }
152 
153  return 0;
154 }
155 
157 {
159  av_assert0(desc);
160  return !(desc->flags & AV_PIX_FMT_FLAG_RGB) && desc->nb_components == 3;
161 }
162 
163 static int prepare_uv_scale(AVFilterLink *outlink)
164 {
165  AVFilterContext *context = outlink->src;
167  AVFilterLink *inlink = context->inputs[0];
168  enum AVPixelFormat fmt = inlink->format;
169 
170  if (isPlanarYUV(fmt)) {
171  if (inlink->w != outlink->w || inlink->h != outlink->h) {
172  if (fmt == AV_PIX_FMT_NV12) {
173  ctx->sws_uv_scale = sws_getContext(inlink->w >> 1, inlink->h >> 1, AV_PIX_FMT_YA8,
174  outlink->w >> 1, outlink->h >> 1, AV_PIX_FMT_YA8,
176  ctx->sws_uv_height = inlink->h >> 1;
177  } else {
179  int sws_src_h = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
180  int sws_src_w = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
181  int sws_dst_h = AV_CEIL_RSHIFT(outlink->h, desc->log2_chroma_h);
182  int sws_dst_w = AV_CEIL_RSHIFT(outlink->w, desc->log2_chroma_w);
183  ctx->sws_uv_scale = sws_getContext(sws_src_w, sws_src_h, AV_PIX_FMT_GRAY8,
184  sws_dst_w, sws_dst_h, AV_PIX_FMT_GRAY8,
186  ctx->sws_uv_height = sws_src_h;
187  }
188  }
189  }
190 
191  return 0;
192 }
193 
194 static int config_output(AVFilterLink *outlink)
195 {
196  AVFilterContext *context = outlink->src;
198  int result;
199  AVFilterLink *inlink = context->inputs[0];
200 
201  // have a try run in case that the dnn model resize the frame
202  result = ff_dnn_get_output(&ctx->dnnctx, inlink->w, inlink->h, &outlink->w, &outlink->h);
203  if (result != 0) {
204  av_log(ctx, AV_LOG_ERROR, "could not get output from the model\n");
205  return result;
206  }
207 
208  prepare_uv_scale(outlink);
209 
210  return 0;
211 }
212 
214 {
215  const AVPixFmtDescriptor *desc;
216  int uv_height;
217 
218  if (!ctx->sws_uv_scale) {
219  av_assert0(in->height == out->height && in->width == out->width);
221  uv_height = AV_CEIL_RSHIFT(in->height, desc->log2_chroma_h);
222  for (int i = 1; i < 3; ++i) {
223  int bytewidth = av_image_get_linesize(in->format, in->width, i);
224  if (bytewidth < 0) {
225  return AVERROR(EINVAL);
226  }
227  av_image_copy_plane(out->data[i], out->linesize[i],
228  in->data[i], in->linesize[i],
229  bytewidth, uv_height);
230  }
231  } else if (in->format == AV_PIX_FMT_NV12) {
232  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 1), in->linesize + 1,
233  0, ctx->sws_uv_height, out->data + 1, out->linesize + 1);
234  } else {
235  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 1), in->linesize + 1,
236  0, ctx->sws_uv_height, out->data + 1, out->linesize + 1);
237  sws_scale(ctx->sws_uv_scale, (const uint8_t **)(in->data + 2), in->linesize + 2,
238  0, ctx->sws_uv_height, out->data + 2, out->linesize + 2);
239  }
240 
241  return 0;
242 }
243 
244 static int flush_frame(AVFilterLink *outlink, int64_t pts, int64_t *out_pts)
245 {
246  DnnProcessingContext *ctx = outlink->src->priv;
247  int ret;
248  DNNAsyncStatusType async_state;
249 
250  ret = ff_dnn_flush(&ctx->dnnctx);
251  if (ret != 0) {
252  return -1;
253  }
254 
255  do {
256  AVFrame *in_frame = NULL;
257  AVFrame *out_frame = NULL;
258  async_state = ff_dnn_get_result(&ctx->dnnctx, &in_frame, &out_frame);
259  if (out_frame) {
260  if (isPlanarYUV(in_frame->format))
261  copy_uv_planes(ctx, out_frame, in_frame);
262  av_frame_free(&in_frame);
263  ret = ff_filter_frame(outlink, out_frame);
264  if (ret < 0)
265  return ret;
266  if (out_pts)
267  *out_pts = out_frame->pts + pts;
268  }
269  av_usleep(5000);
270  } while (async_state >= DAST_NOT_READY);
271 
272  return 0;
273 }
274 
276 {
277  AVFilterLink *inlink = filter_ctx->inputs[0];
278  AVFilterLink *outlink = filter_ctx->outputs[0];
280  AVFrame *in = NULL, *out = NULL;
281  int64_t pts;
282  int ret, status;
283  int got_frame = 0;
284  int async_state;
285 
287 
288  do {
289  // drain all input frames
291  if (ret < 0)
292  return ret;
293  if (ret > 0) {
294  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
295  if (!out) {
296  av_frame_free(&in);
297  return AVERROR(ENOMEM);
298  }
300  if (ff_dnn_execute_model(&ctx->dnnctx, in, out) != 0) {
301  return AVERROR(EIO);
302  }
303  }
304  } while (ret > 0);
305 
306  // drain all processed frames
307  do {
308  AVFrame *in_frame = NULL;
309  AVFrame *out_frame = NULL;
310  async_state = ff_dnn_get_result(&ctx->dnnctx, &in_frame, &out_frame);
311  if (out_frame) {
312  if (isPlanarYUV(in_frame->format))
313  copy_uv_planes(ctx, out_frame, in_frame);
314  av_frame_free(&in_frame);
315  ret = ff_filter_frame(outlink, out_frame);
316  if (ret < 0)
317  return ret;
318  got_frame = 1;
319  }
320  } while (async_state == DAST_SUCCESS);
321 
322  // if frame got, schedule to next filter
323  if (got_frame)
324  return 0;
325 
327  if (status == AVERROR_EOF) {
328  int64_t out_pts = pts;
329  ret = flush_frame(outlink, pts, &out_pts);
330  ff_outlink_set_status(outlink, status, out_pts);
331  return ret;
332  }
333  }
334 
336 
337  return 0;
338 }
339 
341 {
343 
344  sws_freeContext(context->sws_uv_scale);
345  ff_dnn_uninit(&context->dnnctx);
346 }
347 
349  {
350  .name = "default",
351  .type = AVMEDIA_TYPE_VIDEO,
352  .config_props = config_input,
353  },
354 };
355 
357  {
358  .name = "default",
359  .type = AVMEDIA_TYPE_VIDEO,
360  .config_props = config_output,
361  },
362 };
363 
365  .name = "dnn_processing",
366  .description = NULL_IF_CONFIG_SMALL("Apply DNN processing filter to the input."),
367  .priv_size = sizeof(DnnProcessingContext),
368  .init = init,
369  .uninit = uninit,
373  .priv_class = &dnn_processing_class,
374  .activate = activate,
375 };
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:101
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_dnn_processing.c:340
dnn_processing_options
static const AVOption dnn_processing_options[]
Definition: vf_dnn_processing.c:47
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
status
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
AV_PIX_FMT_YA8
@ AV_PIX_FMT_YA8
8 bits gray, 8 bits alpha
Definition: pixfmt.h:133
filter_ctx
static FilteringContext * filter_ctx
Definition: transcoding.c:49
out
FILE * out
Definition: movenc.c:54
OFFSET
#define OFFSET(x)
Definition: vf_dnn_processing.c:45
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1009
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2858
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition: error.h:57
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:170
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:116
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
pixdesc.h
AVFrame::pts
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:432
DnnProcessingContext
Definition: vf_dnn_processing.c:38
AVFrame::width
int width
Definition: frame.h:397
AVOption
AVOption.
Definition: opt.h:251
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
sws_scale
int attribute_align_arg sws_scale(struct SwsContext *c, const uint8_t *const srcSlice[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])
swscale wrapper, so we don't need to export the SwsContext.
Definition: swscale.c:1203
DNNData::height
int height
Definition: dnn_interface.h:61
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_dnn_processing.c:134
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
dnn_filter_common.h
FF_FILTER_FORWARD_STATUS_BACK
#define FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink)
Forward the status on an output link to an input link.
Definition: filters.h:199
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:346
av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:374
formats.h
ff_inlink_consume_frame
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
Definition: avfilter.c:1404
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:430
DnnContext
Definition: dnn_filter_common.h:29
pts
static int64_t pts
Definition: transcode_aac.c:654
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
flush_frame
static int flush_frame(AVFilterLink *outlink, int64_t pts, int64_t *out_pts)
Definition: vf_dnn_processing.c:244
avassert.h
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
check
#define check(x, y, S, v)
Definition: motion_est_template.c:405
ff_outlink_set_status
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition: filters.h:189
copy_uv_planes
static int copy_uv_planes(DnnProcessingContext *ctx, AVFrame *out, const AVFrame *in)
Definition: vf_dnn_processing.c:213
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_dnn_processing.c:68
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
DNNData
Definition: dnn_interface.h:59
filters.h
ff_dnn_get_result
DNNAsyncStatusType ff_dnn_get_result(DnnContext *ctx, AVFrame **in_frame, AVFrame **out_frame)
Definition: dnn_filter_common.c:147
ctx
AVFormatContext * ctx
Definition: movenc.c:48
pix_fmt
static enum AVPixelFormat pix_fmt
Definition: demuxing_decoding.c:41
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
av_usleep
int av_usleep(unsigned usec)
Sleep for a period of time.
Definition: time.c:84
AV_PIX_FMT_GRAYF32
#define AV_PIX_FMT_GRAYF32
Definition: pixfmt.h:491
check_modelinput_inlink
static int check_modelinput_inlink(const DNNData *model_input, const AVFilterLink *inlink)
Definition: vf_dnn_processing.c:84
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
ff_dnn_get_input
int ff_dnn_get_input(DnnContext *ctx, DNNData *input)
Definition: dnn_filter_common.c:109
context
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option keep it simple and lowercase description are in without and describe what they for example set the foo of the bar offset is the offset of the field in your context
Definition: writing_filters.txt:91
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(dnn_processing)
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
result
and forward the result(frame or status change) to the corresponding input. If nothing is possible
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:603
init
static av_cold int init(AVFilterContext *context)
Definition: vf_dnn_processing.c:62
time.h
dnn_processing_inputs
static const AVFilterPad dnn_processing_inputs[]
Definition: vf_dnn_processing.c:348
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
ff_dnn_flush
int ff_dnn_flush(DnnContext *ctx)
Definition: dnn_filter_common.c:152
ff_inlink_acknowledge_status
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition: avfilter.c:1358
DNN_COMMON_OPTIONS
#define DNN_COMMON_OPTIONS
Definition: dnn_filter_common.h:43
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:115
DAST_SUCCESS
@ DAST_SUCCESS
Definition: dnn_interface.h:49
AV_PIX_FMT_FLAG_RGB
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:136
sws_getContext
struct SwsContext * sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
Allocate and return an SwsContext.
Definition: utils.c:2084
avio.h
avpriv_report_missing_feature
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:412
DNNData::dt
DNNDataType dt
Definition: dnn_interface.h:63
ff_vf_dnn_processing
const AVFilter ff_vf_dnn_processing
Definition: vf_dnn_processing.c:364
DNN_FLOAT
@ DNN_FLOAT
Definition: dnn_interface.h:37
FF_FILTER_FORWARD_WANTED
FF_FILTER_FORWARD_WANTED(outlink, inlink)
internal.h
av_image_get_linesize
int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane)
Compute the size of an image line with format pix_fmt and width width for the plane plane.
Definition: imgutils.c:76
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
activate
static int activate(AVFilterContext *filter_ctx)
Definition: vf_dnn_processing.c:275
av_always_inline
#define av_always_inline
Definition: attributes.h:49
DnnProcessingContext::sws_uv_height
int sws_uv_height
Definition: vf_dnn_processing.c:42
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
DnnProcessingContext::dnnctx
DnnContext dnnctx
Definition: vf_dnn_processing.c:40
AVFilter
Filter definition.
Definition: avfilter.h:171
ret
ret
Definition: filter_design.txt:187
AV_PIX_FMT_NV12
@ AV_PIX_FMT_NV12
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:89
AVFrame::height
int height
Definition: frame.h:397
sws_freeContext
void sws_freeContext(struct SwsContext *swsContext)
Free the swscaler context swsContext.
Definition: utils.c:2415
ff_dnn_get_output
int ff_dnn_get_output(DnnContext *ctx, int input_width, int input_height, int *output_width, int *output_height)
Definition: dnn_filter_common.c:114
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:415
isPlanarYUV
static av_always_inline int isPlanarYUV(enum AVPixelFormat pix_fmt)
Definition: vf_dnn_processing.c:156
LOG_FORMAT_CHANNEL_MISMATCH
#define LOG_FORMAT_CHANNEL_MISMATCH()
Definition: vf_dnn_processing.c:77
desc
const char * desc
Definition: libsvtav1.c:83
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
DNNData::channels
int channels
Definition: dnn_interface.h:61
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
ff_dnn_init
int ff_dnn_init(DnnContext *ctx, DNNFunctionType func_type, AVFilterContext *filter_ctx)
Definition: dnn_filter_common.c:54
DNNData::width
int width
Definition: dnn_interface.h:61
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
imgutils.h
prepare_uv_scale
static int prepare_uv_scale(AVFilterLink *outlink)
Definition: vf_dnn_processing.c:163
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:370
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
FLAGS
#define FLAGS
Definition: vf_dnn_processing.c:46
ff_dnn_uninit
void ff_dnn_uninit(DnnContext *ctx)
Definition: dnn_filter_common.c:157
ff_dnn_execute_model
int ff_dnn_execute_model(DnnContext *ctx, AVFrame *in_frame, AVFrame *out_frame)
Definition: dnn_filter_common.c:120
DAST_NOT_READY
@ DAST_NOT_READY
Definition: dnn_interface.h:48
SwsContext
Definition: swscale_internal.h:299
DNNAsyncStatusType
DNNAsyncStatusType
Definition: dnn_interface.h:45
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
DFT_PROCESS_FRAME
@ DFT_PROCESS_FRAME
Definition: dnn_interface.h:54
DnnProcessingContext::sws_uv_scale
struct SwsContext * sws_uv_scale
Definition: vf_dnn_processing.c:41
SWS_BICUBIC
#define SWS_BICUBIC
Definition: swscale.h:67
swscale.h
dnn_processing_outputs
static const AVFilterPad dnn_processing_outputs[]
Definition: vf_dnn_processing.c:356
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2778
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_dnn_processing.c:194